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Paris Observatory
The Paris Observatory (, ), a research institution of the Paris Sciences et Lettres University, is the foremost astronomical observatory of France, and one of the largest astronomical centres in the world. Its historic building is on the Left Bank of the Seine in central Paris, but most of the staff work on a satellite campus in Meudon, a suburb southwest of Paris. The Paris Observatory was founded in 1667. Construction was completed by the early 1670s and coincided with a major push for increased science, and the founding of the Royal Academy of Sciences. King Louis XIV's minister of finance organized a "scientific powerhouse" to increase understanding of astronomy, maritime navigation, and science in general. Through the centuries the Paris Observatory has continued in support of astronomical activities, and in the 21st century connects multiple sites and organizations, supporting astronomy and science, past and present. Constitution Administratively, it is a '' grand étab ...
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Paris Sciences Et Lettres University
PSL University (PSL or in French Université PSL, for Paris Sciences et Lettres) is a ''Grands établissements, Grand établissement'' based in Paris, France. It was established in 2010 and formally created as a university in 2019. It is a collegiate university with 11 constituent schools, with the oldest founded in 1530. PSL is located in central Paris, with its main sites in the Latin Quarter, at the Montagne Sainte-Geneviève Campus, at the Jourdan Campus, at Paris Dauphine University, Dauphine Campus, at Condorcet Campus, and at Rue de Richelieu, Carré Richelieu. PSL awards Bachelor's degree, Bachelor's, Master's degree, Master's, and PhD Degree, PhD diplomas for its constituent schools and institutes. It offers an education based on research and interdisciplinary instruction, and its students have access to a broad range of disciplines in science, engineering, humanities, social sciences, fine art and performing arts. PSL alumni and staff include 28 Nobel Prize, Nobel lau ...
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La Hire 1682
LA most frequently refers to Los Angeles, the second most populous city in the United States of America. La, LA, or L.A. may also refer to: Arts and entertainment Music * La (musical note), or A, the sixth note *"L.A.", a song by Elliott Smith on ''Figure 8'' (album) * ''L.A.'' (EP), by Teddy Thompson *'' L.A. (Light Album)'', a Beach Boys album * "L.A." (Neil Young song), 1973 * The La's, an English rock band * L.A. Reid, a prominent music producer * Yung L.A., a rapper * Lady A, an American country music trio * "L.A." (Amy Macdonald song), 2007 *"La", a song by Australian-Israeli singer-songwriter Old Man River *''La'', a Les Gordon album Other media * l(a, a poem by E. E. Cummings * La (Tarzan), fictional queen of the lost city of Opar (Tarzan) *'' Lá'', later known as Lá Nua, an Irish language newspaper * La7, an Italian television channel *LucasArts, an American video game developer and publisher * Liber Annuus, academic journal Business, organizations, and governm ...
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Encyclopædia Britannica
The is a general knowledge, general-knowledge English-language encyclopaedia. It has been published by Encyclopædia Britannica, Inc. since 1768, although the company has changed ownership seven times. The 2010 version of the 15th edition, which spans 32 volumes and 32,640 pages, was the last printed edition. Since 2016, it has been published exclusively as an online encyclopedia, online encyclopaedia. Printed for 244 years, the ''Britannica'' was the longest-running in-print encyclopaedia in the English language. It was first published between 1768 and 1771 in Edinburgh, Scotland, in three volumes. The encyclopaedia grew in size; the second edition was 10 volumes, and by its fourth edition (1801–1810), it had expanded to 20 volumes. Its rising stature as a scholarly work helped recruit eminent contributors, and the 9th (1875–1889) and Encyclopædia Britannica Eleventh Edition, 11th editions (1911) are landmark encyclopaedias for scholarship and literary ...
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Charles Perrault
Charles Perrault ( , , ; 12 January 162816 May 1703) was a French author and member of the Académie Française. He laid the foundations for a new literary genre, the fairy tale, with his works derived from earlier folk tales, published in his 1697 book '' Histoires ou contes du temps passé''. The best known of his tales include " Little Red Riding Hood", "Cinderella", " Puss in Boots", "Sleeping Beauty", and "Bluebeard". Some of Perrault's versions of old stories influenced the German versions published by the Brothers Grimm more than 100 years later. The stories continue to be printed and have been adapted to most entertainment formats. Perrault was an influential figure in the 17th-century French literary scene and was the leader of the Modern faction during the Quarrel of the Ancients and the Moderns. Life and work Charles Perrault was born in Paris on 12 January 1628,Christian Michel (1996)"Perrault family: (3) Charles Perrault" vol. 24, p. 470, in ''The Dictionary of A ...
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Claude Perrault
Claude Perrault (; 25 September 1613 – 9 October 1688) was a French physician and amateur architect, best known for his participation in the design of the east façade of the Louvre in Paris."Claude Perrault. French physician and architect"
''Britannica'' online. Retrieved 5 May 2022.
He also designed the Paris Observatory and was an and author who wrote treatises on architecture, , and

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Architect
An architect is a person who plans, designs, and oversees the construction of buildings. To practice architecture means to provide services in connection with the design of buildings and the space within the site surrounding the buildings that have human occupancy or use as their principal purpose. Etymologically, the term architect derives from the Latin , which derives from the Greek (''-'', chief + , builder), i.e., chief builder. The professional requirements for architects vary from location to location. An architect's decisions affect public safety, and thus the architect must undergo specialised training consisting of advanced education and a ''practicum'' (or internship) for practical experience to earn a Occupational licensing, license to practice architecture. Practical, technical, and academic requirements for becoming an architect vary by jurisdiction though the formal study of architecture in academic institutions has played a pivotal role in the development of the p ...
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John Locke
John Locke (; 29 August 1632 (Old Style and New Style dates, O.S.) – 28 October 1704 (Old Style and New Style dates, O.S.)) was an English philosopher and physician, widely regarded as one of the most influential of the Enlightenment thinkers and commonly known as the "father of liberalism". Considered one of the first of the British empiricists, following the tradition of Francis Bacon, Locke is equally important to social contract theory. His work greatly affected the development of epistemology and political philosophy. His writings influenced Voltaire and Jean-Jacques Rousseau, and many Scottish Enlightenment thinkers, as well as the American Revolutionaries. His contributions to classical republicanism and liberal theory are reflected in the United States Declaration of Independence. Internationally, Locke's political-legal principles continue to have a profound influence on the theory and practice of limited representative government and the protection of basic right ...
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Royal Observatory, Greenwich
The Royal Observatory, Greenwich (ROG; known as the Old Royal Observatory from 1957 to 1998, when the working Royal Greenwich Observatory, RGO, temporarily moved south from Greenwich to Herstmonceux) is an observatory situated on a hill in Greenwich Park in south east London, overlooking the River Thames to the north. It played a major role in the history of astronomy and navigation, and because the Prime meridian (Greenwich), Prime Meridian passed through it, it gave its name to Greenwich Mean Time, the precursor to today's Coordinated Universal Time (UTC). The ROG has the IAU observatory code of 000, the first in the list. ROG, the National Maritime Museum, the Queen's House and the clipper ship ''Cutty Sark'' are collectively designated Royal Museums Greenwich. The observatory was commissioned in 1675 by Charles II of England, King Charles II, with the foundation stone being laid on 10 August. The old hilltop site of Greenwich Castle was chosen by Sir Christopher Wren, a for ...
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Prime Meridian
A prime meridian is an arbitrarily chosen meridian (geography), meridian (a line of longitude) in a geographic coordinate system at which longitude is defined to be 0°. On a spheroid, a prime meridian and its anti-meridian (the 180th meridian in a degree (angle), 360°-system) form a great ellipse. This divides the body (e.g. Earth) into hemispheres of Earth, two hemispheres: the Eastern Hemisphere and the Western Hemisphere (for an east-west notational system). For Earth's prime meridian, various conventions have been used or advocated in different regions throughout history. Earth's current international standard prime meridian is the IERS Reference Meridian. It is derived, but differs slightly, from the Prime meridian (Greenwich), Greenwich Meridian, the previous standard. Longitudes for the Earth and Moon are measured from their prime meridian (at 0°) to 180° east and west. For all other Solar System bodies, longitude is measured from 0° (their prime meridian) to 360� ...
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Paris Meridian
The Paris meridian is a meridian line running through the Paris Observatory in Paris, France – now longitude 2°20′14.02500″ East. It was a long-standing rival to the Greenwich meridian as the prime meridian of the world. The "Paris meridian arc" or "French meridian arc" (French: ''la Méridienne de France'') is the name of the meridian arc measured along the Paris meridian. The French meridian arc was important for French cartography, since the triangulations of France began with the measurement of the French meridian arc. Moreover, the French meridian arc was important for geodesy as it was one of the meridian arcs which were measured to determine the figure of the Earth via the arc measurement method. The determination of the figure of the Earth was a problem of the highest importance in astronomy, as the diameter of the Earth was the unit to which all celestial distances had to be referred. History French cartography and the figure of the Earth In the ye ...
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Port-Royal Abbey, Paris
Port-Royal Abbey () was an abbey in Paris that was a stronghold of Jansenism. Cistercian nuns moved from the older abbey, Port-Royal-des-Champs, founded in 1204, to Paris and founded Port-Royal-de-Paris in 1626. There were frequent controversies as the sisters struggled against authorities in the church and at court. Some of the sisters returned to the medieval convent. Until it was dissolved in 1709, the Parisian abbey was highly influential and often in the news. It is today the site of an urban hospital. History Origins of the Abbey The buildings that housed the Abbey began as a private mansion. The ''Hôtel de Clagny'' was built by Pierre Lescot between 1566 and 1569 in the Faubourg Saint-Jacques in Paris. When he died in 1578, Léon Lescot, his nephew, inherited the property. On March 20, 1623, Léon gave Jehan Blondeau, his valet, and his great-nephew Robert de Romain, a cleric in the diocese of Meaux, "the vegetable garden and the gardens commonly called Claigny." By dee ...
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Midsummer's Day
Midsummer is a celebration of the season of summer, taking place on or near the date of the summer solstice in the Northern Hemisphere; the longest day of the year. The name "midsummer" mainly refers to summer solstice festivals of European origin. These cultures traditionally regard it as the middle of summer, with the season beginning on May Day. Although the summer solstice falls on 20, 21 or 22 June in the Northern Hemisphere, it was traditionally reckoned to fall on 23–24 June in much of Europe. These dates were Christianized as Saint John's Eve and Saint John's Day. It is usually celebrated with outdoor gatherings that include bonfires and feasting. History There is evidence that the summer solstice has been culturally important since the Neolithic era, with many ancient monuments throughout Eurasia and the Americas aligned with sunrise or sunset on the summer solstice. The name 'midsummer' is attested in Old English as ''midsumor'', and refers to the time aro ...
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